Efficiency score is calculated by dividing the net new ARR by the net burn [1]
Good is <0.5x, Better is 0.5x-1.5x, Best is >1.5x [2]
[1] Retrieved May 21, 2021, from https://www.slideshare.net/BessemerVP/bessemer-venture-partners-2019-state-of-the-cloud-130798518
[2] Bessemer Efficiency Score. Retrieved May 21, 2021, from https://www.klipfolio.com/metrics/saas/bessemer-efficiency-score